int ledPin = 13;                // choose the pin for the LED
int inputPin = 2;               // choose the input pin (for PIR sensor)
int pirState = LOW;             // we start, assuming no motion detected
int val = 0;                   // variable for reading the pin status
int time;
int distance;

void setup() {
  pinMode(ledPin, OUTPUT);      // declare LED as output
  pinMode(inputPin, INPUT);     // declare sensor as input
  pinMode(3, OUTPUT);
  pinMode(5,INPUT);
  pinMode(13,OUTPUT);
   Serial.begin(9600);
}

void loop() {
  val = digitalRead(inputPin);  // read input value
  digitalWrite(3, HIGH);
  delayMicroseconds(10);
  digitalWrite(3, LOW);
  time=pulseIn (5,HIGH);
  distance=(time*0.034)/2;
  if(distance<=10)
  {
    Serial.println("door open");
    Serial.println("Distance=");
    Serial.println(distance);
    digitalWrite(12, HIGH);
    delay(500);
  }
  else{
     Serial.println("door close");
    Serial.println("Distance=");
    Serial.println(distance);
    digitalWrite(12, LOW);
    delay(500);
  }

  if (val == HIGH) {            // check if the input is HIGH
    digitalWrite(ledPin, HIGH);  // turn LED ON
    if (pirState == LOW) {
      // we have just turned on
      Serial.println("Motion detected!");
      // We only want to print on the output change, not state
      pirState = HIGH;
    }
  } else {
    digitalWrite(ledPin, LOW); // turn LED OFF
    if (pirState == HIGH) {
      // we have just turned of
      Serial.println("Motion ended!");
      // We only want to print on the output change, not state
      pirState = LOW;
    }
  }
}